schreiber



N. SCHREIBER.

BOILER SKIMMER. APmcATmH HLED JUNE 21. :91s.

Lg. `Patented May 2G, i919.

2 SHEETS-SHEET l.

N. SCHREIBER. BOlLER SKMMER. APPLICATION man lunslizsus.

l 1,304,385. Patented Mayo, 1919.

2 SHEETS-SHEET 2.

UNITED STATES PATENT oniiion.

NORBERT sciinniisnn, or LINCOLN, ILLINOIS,

Assi'eivon To' AMERIGAN'STEAM BOILEB.

CLEANER C0., OF SAN ANTONIO, TEXAS, A CORPORATION OF TEXAS.

BoILnn-SKIMMER.

Patented May 2,0, 1919.

Application led June 21, 1916. Serial No. 104,997.

T0 all whom it may concern Be it known that I, NORBERT ScriRnIBnR, a citizen of the United States, residing at Lincoln, in the county of Logan and State of Illinois, have invented a certain new and useful Improvement in Boiler-Skimmers, of which the following is a full, clear, concise,

and exact description, reference being had to the accompanying drawings, forming a part of this specification. Y

My invention relates to boiler skimmers. Prominent objects of the invention are to provide aV practical and eiective construction of boiler skimmer; to arrange for the easy adjustment of the skimmer with reference to the varying level of the water; to prevent the collapse of the floats on the skimmer by external pressure, as for example high pressure ci' steam in the locomotive boiler; to provide for holding the floats securely in position; and to secure the foregoing and other desirable results in a simple and expeditious manner. l

In the accompanying drawings Figure 1 is a longitudinal. section of a rportion of a. locomotive boiler provided with a boiler skimmer embodying my invention;

Fig. 2 is a plan view of the skimmer; Fig. 3 is an end elevation of the same; Fig. 4 s an elevation partly in section of a float Jfor the skimmer; and

Fig. 5 is a cross section taken on line 5.-5 A in Fig. 4. Referring to Fig. 1, the top of the locomotive boiler is indicated at 1 and the steam dome of said boiler at 2. A dry pipe 3 is shown within the boiler and steam dome 2. The boiler skimmer shown within the boiler has an elevated pipe or member 4 which extends lengthwise of the dry pipe 3 above the same. AV pipe connection 5 extends upwardly from the pipe 4 to the boiler top 1 opening through the same, being provided with a valve 6 and controlling handle 7. By this connection the skimmer maybe drained or dischar ed outside ot the boiler and at 'the same time the pipe 4 with its attached elements may be mounted upon or attached to the boiler. Cross pipes 8 and9 extend '50 laterally from the opposite ends of the cenface ofthe water may escape.

1 andA 2. ,made of two cylindrical halves welded, to-

,accurately to Vchanges in A provement the floats 25 dry pipe 3,'asshown in Fig. 3 whereb these pipes with the cross pipes 8 and 9 orm a saddle for the dry pipe permitting the skimmer to straddle the dry pipe, but' holding the skimmer in proper central relative position. Other side pipes 14 and 15'are arranged on the outer sidesof the side pipes 8 and 9, respectively and extend downwardly alongside of the same. At the lower ends of the pipes 14 swingingy pipes 16 are pivoted, these pipes 16 being capable of swinging vertically Iabout their pivotal connections17 at theV lowerlend of said pipes 14. In a similar way other pipes 18 are pivoted at 19 to the lower ends of the side pipes 15. Between the upper or swinging ends of the pipes 16 and 18 other pipes 20 are extended, these pipes 20 being pivoted at 21 and 22, respectively, to theupper-ends of the pipes 16 and 18. Thus on eachside of the skimmer there is provided a jointed frame consisting of the two swinging end pipes 16r and 18 and the connecting horizontal pipe 20, the latter being provided with intake apertures 24, through which the scum and dirt on the surmounted upon these jointed frames, said floats being preferably secured to the side pipes 20 at or near the endsthereof and also at points between the ends, as shown in. Figs. kThese floats l25 are preferably gether, so as to' be as near non-collapsible as possible. f

Counterbalanoing rods 28 to the swinging` 27 being provided with counterweights 30 by which said side jointed trames are substantially counterbalanced. rIn this way the weight of said jointed frames is pretty well taken up Vso that said frames are very sensitive and adjust themselvesvery quickly and the boilein j n Y c As a matter of further and specific imare secured to the skimmer by means of clamps 31, which clamps are best shown in Figs.y 4 and 5. Each clamp vconsists of a tubular portion 32 adapted to iit over the pipe 20 or other suit- ;able member, said ltubular portion 32, being clamped together by means of bolts 33 so as to grip irmly'the pipe or member 20.A Another bolt is passed throughthe Floats25 are.

27 are secured at. members 18, said rods the water level of tubular The vbody member 37 vthe iixed frame just member 32 so as to `engage and bite directly the member 20. Annuler bands or rings 35 extend around the float 25 and are held 4firmly together at their split ends by bolts 36 whereby said 'bands may be drawn tightly around said iioats. The. bands 35 .are secured to the body member 37 Which connects the tubular member 32 With said bands 35. is preferably provided to receive an annular 38 (F ig. 4) upon the a tight fiirt between ithe with a recess portion projection or flange float 2,5, thus insuring clamp and float.

As 4.a ,fmatter of still further improvement the floats Vare preferably provided with apertures by which compressedzair or other fluid under pressure may be introduced Within them, this internal pressure L'being provided invorder to L:counteract to afgreater or Yless degreefthe external :pressure V.due to the steam pressure inside of the boiler. As one arrangement I show an aperture atthe end ofthe float '25 Figa 4),said aperture being show-n closed Vby la plug 40 lwhich may have a threaded connection with Lthe interior of the aperture. In this -Wayairor .other fluid lunder pressure 'may be introduced and then the aperture closed `by lthe plug so las to retain the internal pressure in fthe iioa't. By the use of this counteracting iniiuence'or agent, a further preventativeof thecollapse lofthe ioat is employed.

In usingthe skimmer, the pipe 4 avith :its attached ymembers will form a stationary frame Which is attached or secured vto the boiler yl by -means vof tliefeonnec'tion Vv5, 'this stationary frame fitting-and being heldclose tothe dry pipe `3. 'The jointed side frames comprising the arms 16 and 18 and connected parts, form movable frames with the skimming pipes vor elements and l:these movable frames are movable relatively to referred to, so that these adjustable frames adjustrthe-skiniming elements quickly and accurately lftoc'hanges in the water level in the yboiler, Vthis A'movement being assisted 'by means ofthe-conntei`- balancing construction. lllhe refuse lmatter skimmed fromthe Water is eonveyedgthrough the various pipes vand discharged vthrough the pipe connection 5 tothe exterior'ofpthe boiler. The valves 6 controlling this discharge is understood to be connected by a suitable connection '4l with the 'throttle valve of the locomotive so that the 1discharge of the skimmer Will be automatically brought about by the actuation of the throttle valve. The throttle valve and further connections are not shown herein as they are fully disclosed and claimed in Letters Patent No. 1,165,717, issued VDecember 28, 1915 to .Raphael Rosenthal and myself.

It Will be understood that lchanges and modifications may be made Without fdeparting from the `spirit of theinvention.

'pipe -and communicating .and connections ,bet-Ween said frames consisting of pipe members extending between the opposite ends Iof said skimming vpipes and the vends of said ycross :pipes and pivot- Iall-ly connected .with 4the ,sa-me.

2. 'The combination of a fjointed frame comprising a tubular ymember provided With xintake openings and a .pivoted member pivlota'lly .mounted at `one end and pivotally connected "With said tubular 4memfber at its other fend, `and a Weighted -counterbalancing rod connected WithK-saidpivoted member "between theends thereofand extended yto the lsiclevo'f'saicl pivot'on Whieh lsaid member is mounted opposite the .tween said tubular member.

3. Adeviicefof the class specilied comprising a frame adapted to fitover the dry pipe of a ilocomotive boiler, said frame Yhaving ydownwardly extending 'legs arranged 'to Afit on'opposite sides ofthe drypipe, said frame ailso having other 'downwardly extending members, and a jointed framepivotally connected With the lower -ends of said other downwardly extendingmei'nbers.

4. In boiler skimming apparatus, the combination With a long fixed supporting pipe connected AWith .the `exterior of the boiler, parallel transversely extending pipe arms secured to Ythe ends of said supporting y "therewith, an in- 'the ends ofsaid arms pivotal connection betake pipe coupled to 'to sivingbodi'ly and :having scum inletopem ings, and fioats on said intake pipe'to keep -it at the Water surface and'its inlet openings in position to receive scum, foam or other impurities Lto Vbe removed.

5. In boiler skimming apparatus, the combination with a long xed supporting pipe connected With the exterior of the boiler, a 'long intake pipe, -Hexible piping connectingthe ends ofsaid intake pipe With the ends of the supporting pipe to permit the former to oscillate at each `end about an axis at right angles 'to 'the latter, said intake pipe having senin fioats on said intake pipe Lfor keeping said pipeat the Water surface with its inlet openings in position to receive scum, .foam or other impurities to beremoved.

,6. vInlboijler skimminggapparatus, the com- Vbinationof a long fixedsupporting pipe extending lengthvvise of :the boiler and connected with Ithe exterior thereof, a long in- Awk@ pipe yhaving scum Vinlet openings: Cou

extending longitudimember and Ipivoted inlet openings, and

pling pipe arms connecting the ends of the inta e pipe to the ends of the supporting pipe to permit bodily swing of said pipe, floats secured at intervals on said intake pipe, and a counterweight secured to one of said coupling pipes, said floats and counterweight coperating to keep the intake pipe at the water surface with its inlet openings in position to receive scum, foam or other impurities to be removed.

7. In boiler cleaning apparatus, the combination of a xed supporting frame comprising a long longitudinal pipe and transverse pipes at the ends thereof, said pipes being interconnected and having valve controlled discharge outlets, an intake pipe at each side of said frame, flexible couplings connecting the ends of each intake pipe with the respective ends of the transverse pipes whereby said intake pipes are independently bodily movable, each intake pipe having inlet openings, and float memlbers secured to each intake pipe for holding said pipe at the water surface in order to keep its inlet openings at a level with the scum, foam or other impurities to be removed.

8. In boiler skimming apparatus, the combination of a skimmer pipe, a supporting frame of piping having a valve controlled outlet, pipe links coupled to said supporting frame and said skimmer pipe to adapt said pipe for vertical bodily movement, and float members independently supported from said skimmer pipe to be independently swung bodily about the pipe axis into desired positions of adjustment.

9. In boiler skimming apparatus, the combination of a skimmer pipe, a supporting frame of piping having a valve controlled outlet, pipe links coupled to said supportin frame and said skimmer pipe to adapt sai pipe for vertical bodily movement, and float members independently supported from said skimmer pipe to be independently swung bodily about the pipe axis into desired positions of adjustment, one of said links having a weight thereon for counter-acting the weight of said skimmer pipe and float members.

10. The combination with a boiler having a dry pipe extending longitudinally therethrough, a supporting frame lixed on saidv dry pipe and comprising a longitudinal pipe and transverse pipes at the end thereof, said pipes beingV interconnected and having a valve controlled outlet, an intake pipe at each side of the dry pipe, coupling pipe arms connecting the ends of each intake pipe with the respective ends of the transverse pipes of the supporting frame, said intake pipes having inlet openings, andfloats on said intake pipes for keeping them at the surface of the water with their inlet openings in Copies of this patent may be obtained forl position to receive scum, foam or other impurities.

11. In a boiler skimmer, tubular brackets, tubular connection establishing communication between the brackets, means for supporting the brackets in a boiler, tubular arms having swinging connection at one end with the lower ends of the brackets and disposed in parallel spaced relation, a skimmer pipe having swinging connection with the opposite ends of the arms, the arms having communication both with the pipe and with the brackets andthe pipe having inlet openings, closures for the ends of the pipe, floats carried by the pipe, and counterweights carried by the opposite ends of the arms whereby the floats and counterweights coperate to maintain the pipe with its inlet openings at substantially the level of water in the boiler while the arm connections between the pipe and brackets permit vertical movement of the pipe but hold it against angular movement with respect to the brackets.

12. In a 'boiler skimmer, a pair of tubular substantially U-shaped brackets adapted to be rigidly secured within a boiler with their sides projecting downwardly, tubular connecting means between the brackets, a discharge leading from such connecting means, tubular arms having swinging and communieating connection one with each arm of each bracket, tubular skimmer elements connecting the free ends of the arms and communieating therewith and formed with inlet openings, and floats carried by the skimmer elements.

13. In a boiler skimmer, tubular brackets, tubular connection establishin communication between the brackets, tubu ar arms having swinging connection at one end with the lower ends of the brackets, aV skimmer pipe having swinging connection with the opposite ends of the arms, the arms having communication with both brackets, and the pipe having inlet openings, and floats carried by theskimmer pipe.

14. In a boiler skimmer, tubular brackets, a tubular connection establishing communication between the brackets, tubular arms having swinging connection vat one vend with the lower ends of the brackets, a skimmer pipe having swinging connection'with the opposite ends of the arms, the arms having communicationwith both the pipe and the brackets, the pipe having floats. carried by the skimmer pipe, and counterweights carried by the arms.

In witness whereof, I hereunto subscribe my name this 29th day of May, A. D. 1916.

NORBERT SCHREIBER.

Witnesses:

H. H. DICK, GEO. W. OHMEs.

five cents each, by addressing the Commissioner of Ilatent's,Y

Washington, D. G.

the pipe and the inlet openings, 

